The concurrent training challenge is edging ever closer so the Progress Theory Podcast is back with another episode. This time, Phil and Daryl recap the training component which they are finding the most challenging: marathon training. In this episode, the boys discuss what makes an elite marathon runner by discussing the determinants of marathon performance:

- Key physiological factors determinants of marathon performance: VO2max, Lactate Threshold, and running economy

- Why VO2max may be lower for marathon runners in comparison to 5km runners

- How training intensity around 80-95% of VO2max is essential for raising VO2max in amateur runners

- How mechanical efficiency needs to be given time to develop

- How your most efficient running stride tends to be at the speed you run the most.

- How running culture is key for the initial development of elite runners

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